Vin, not sure what all that was about but I don't think we call it the Imperial system here. A gallon is a gallon but in Canada it was an Imperial gallon and was a larger quantity. I've always known it as the standard system and some folks have called it the English system but even that needed clarification as there were parts of the English system that were not really adapted here. There is much to be confused about with the standard system which has to harder to learn if not purely for the additional words it takes for each measure. IE., inches , feet, yard, mile vs meter. Or ounces, lbs vs grams. Or fluid ounces, teaspoon, tablespoon, cup, pint, quart gallon vs liter. We use the metric system sporadically as with byte adding the appropriate multiplier, byte, kilobyte, megabyte, gigabyte, terabyte. At any rate, I've got the standard system so engrained in my head that length in inches and weight in pounds are still pretty much all I use.